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marta [7]
3 years ago
6

Can someone help me with this question please.

Mathematics
1 answer:
Daniel [21]3 years ago
7 0
For part A. 0.85

For part b. 11.9


Explain


Cost of each track in album A= total cost downloading album a/ total number of track


The problem give us a has 11 trackers and the total cost of download is 9.35 pounds


9.35/11

= 0.85


Now we are given each track cost in album b cost the same as track on A

Cost of each track in album B is 0.85

Now we are given if Jane download album B , B will be 14 tracks


Total cost of downloading is album B= number of tracks in album Bx cost of each track in album B


14x0.85 pound

= 11.9

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What is the answer ‍⬛<br><br><br> -1 1/5 + (-3/5)
Luda [366]

Answer:

-9/5

Step-by-step explanation:

I am pretty sure this is it and hope it helps

4 0
3 years ago
THIS IS URGENT I AM BEING TIMED IF YOU ANSWER ALL OF THEM I WILL MARK YOU BRAINLYIST.
tekilochka [14]

Answer:

12.5%

Step-by-step explanation:

4/8 = 50%

2/8 = 25%

1/8 = 12.5%

12.5% of cake

4 0
3 years ago
Problem A. Consider the following initial value problem for a damped driven linear oscillator: m 2 + b** + kx} = f sin(St); x(0)
skad [1K]

Answer:

a = L

b = MT^(-1)

c = LT^(-1)

k = MT^(-2)

f = MLT^(-2)

S = T^(-1)

Step-by-step explanation:

x (0) = a

x is denoted by displacement in vibration analysis hence attains units of x.

Hence, a = L

b is the damping coefficient:

b = \frac{F}{\frac{dx}{dt} } \\= MLT^(-2) / LT^(-1)\\= MT^(-1)

x'(0) = c

dx/dt = velocity hence c attains the units of velocity

c = LT^(-1)

Coefficient k is the stiffness:

k = \frac{F}{x}  = \frac{MLT^(-2)}{L} = MT^(-2)

Coefficient f is the magnitude of the exciting force

F = m*acceleration = MLT^(-2)

Coefficient S is the angular frequency

angular frequency is displacement in radians per seconds; hence,

S = T^(-1)

7 0
3 years ago
I need help with 10 to 14
Zigmanuir [339]

Answer:

10- It is linear and the constant of proportionality is $6

11- x-intercept(s): (5,0)

y-intercept(s): (0,−2)

12- y-intercept(s): (0,3)

Slope: -2

13- B) 2/3

14- C) 2

6 0
3 years ago
Raphael had 5 hits in 7 at bats. If he continues this pattern, how many hits will he have in 210 at bats?
devlian [24]

So it tell us that he is able to get 5 hits out of 7 and to find how much he could make if 210 chances
\frac{5}{7} = \frac{x}{210}

We solve what can be solved
0.7 = \frac{x}{210}

Then we leave our variable alone
0.7 *210=x

Last we solve
x=147

In this case we can see that he could make 147 hits out of 210 bats.
5 0
3 years ago
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